).1205. SYNOPSIS OF THE ^rjIADES— SIMPSON. 911 



tMONOCONDYLiEA GUARAYANA d'Orbigny. 



^ Monocoiuhjlwa guaraijana d'Orbigny, Gner. Mag., 1835, p. 38; *Voy. Am. Mer. 

 1843, p. 614, pi. Lxviii, figs. 4-5. — * H. and A. Adams, Geu. Eec. Moll,, II, 1857, 

 p. 501; III pi. cxvii, fig. 3. — "Chenu, Man., 1859, II, p. 145, fig. 715.— 

 ^P.ETEL, Conch. Sam., Ill, 1890, p. 174. 



'^Margarita (Monocondyla'a) guaraijana Lea, Syn., 1838, p. 28. 



* Unto guarayana Hanlby, Test. Moll., 1842, p. 213; ''Biv. Shells, 1843, p. 213, pi, 



XXII, fig. 14. — * SowERUY, Conch. Icon., XVI, 1868, pi. xcvi, fig. 524. 

 * Margaron (Monocondykea) guarayana Lea, Syn., 1852, p. 45; 1870, p. 73. 



Bolivia. 



MONOCONDYLiEA INERME Spix. 



^ Aplodon inerme Spis., Test. Fluv. Bras., 1827, p. 32, pi. xxv, figs. 1-2. — * yon 

 Ihering, Arch, fur Nat.,1890, p. 126, pi. ix, figs. 1-3. 



South Brazil. 



tMONOCONDYL^A PARCHAPPII d'Orbigny. 



* Moncondyloia parchappii d'Orbigny, Guer. Mag., 1835, p. 38; * Voy. Am. Mer., 



1843, p. 615, pi. LXVIII, figs. 1-3. — * H. and A. Adams, Gen. Eec. Moll., II, 1857, 

 p. 501. — * PyETEL, Conch. Sam., Ill, 1890, p. 174. 

 '^ Margarita (Monocondykva) parchajjpii Lea, Syn., 1838, p. 28. 



* Unio 2}archa])pii Hanley, Test. Moll., 1842, p. 212; ^ Biv. Shells, 1843, p. 212, pi. 



XXII, fig. 13. — * Catlow and Eeeve, Conch. Nom., 1845, p. 62. 



* Mar gar on (Monocondykea) parchappii Lea, Syn., 1852, p. 45 ; 1870, p. 73. 



* \ Monocondylwa pazii Lea, Pr. Ac. N. Sci. Phila., X, 1866, p. 34; *' Jl. Ac. N. Sci. 



Phila., VI, 1868, p. 273, pi. xxxvi, fig. 88 ; '- Obs., XII, 1869, p. 36, pi. xxxvi, fig. 

 88.— * Clessin, Conch. Cab. Ano., 1876. p. 251, pi. Lxxix, figs. 6-7. — *PiETEL, 

 Conch. Sam., Ill, 1890, p. 174. 



* Mafgaron {Monocondykea) pazii Lea, Syn., 1870, p. 73. 



Argentina. 



tMONOCONDYLiEA PARAGUAYANA d'Orbigny. 



* Monocondykea paraguayana d'Orbigny, Guer. Mag., 1835, p. 37. — * Sowerby, 



Conch. Man., 1839, fig. 149.— • d'Orbigny, Voy. Am. Mer., 1843, p. 612, pi. lxx, 

 figs. 5-7. — *H. and A. Adams, Gen. Eec. Moll., II, 1857, p. 501. — ^''Clbssin, 

 Conch. Cab. Ano., 1876, p. 245, pi. Lxxviii, figs. 1, 2. — * P,etel, Conch. Sam., 

 Ill, 1890, p. 174. 



* Margarita {Margaritana) paraguayana Lea, Syn., 1838, p. 27. 



* Unio paraguayana Hanley, Test. Moll., 1842, p. 212 ; * Biv. Shells, 1843, p. 212, pi. 



XXII, fig. 17.— *SowERBY, Conch. Icon., XVI, 1866, pi. lii, fig. 273. 



* Margaron {Monocondykea) paragua.yana Lea, Syn., 1852, x^. 45; 1870, p. 73. 



* Unio Paraguay anus Catlow and Eeeve, Conch. Nom., 1845, p. 62. 



* \ Monocondykea minuana J>' Or^igny , Guer. Mag., 1835, p. 37; *Voy. Am. Mor., 

 1843, p. 612, pl.LXX, figs. 8-10.—* H. and A. Adams, Gen. Eec. Moll., II, 1857, 

 p. 501.— *PiETEL, Conch. Sam., Ill, 1890, p. 174. 



* Margarita {Margaritana) minuana Lea, Syn., 1838, p. 28. 



* Margaron {Monocondykea) minuana Lea, Syn., 1852, p. 45; 1870, p. 73. 



* Unio minuanus Hanley, Test, Moll., 1842, p. 213; *Biv. Shells, 1843, p. 213, pi. 



XXII, fig. 18.—* Sowerby, Conch. Icon., XVI, 1868, pi. xci, fig. 497. 



Rio de la Plata drainage. 



